I had SOHO3s on 4 remote sites connecting to a UNIX system at HQ. All lines are T1. Speed was excellent. I am converting to a Windows environment - Server 2003 and am running a Windows version of the same software the UNIX system ran. I also changed to TZW170. Speed within HQ is very good. Speed at remote sites is very slow - what took a couple of seconds on the UNIX system is 45 seconds to a few minutes now. Currently remote sites are connecting to the 2003 Server over the VPN with a mapped drive on the server. Terminal client services is not being used at this time. I would appreciate any information toward a solution.